more on that in a moment, but first, chris lawrence at the pentagon. chris, the turkish government says it does have a bit more sense of who the attacker was, what are they saying? >> reporter: erin, they think it is a man named etchvech shamly. they say he trained in europe on how to make bombs and has attacked before. the group is a throwback to the cold war, a far left revolutionary group that wants to overthrow turkey's government and establish some sort of communist state. >> and why would they target the u.s. embassy? >> reporter: they are anti-capitalists and they're very, very opposed to the u.s. and nato. analysts say probably two reasons for this attack. one is to embarrass the turkish government. two is to protest the presence of u.s. patriot missiles on turkish soil. right now, 400 american troops are in turkey and they are moving that patriot missile battery into position on turkey's border with syria. turkey requested that help because of the mortars flying in from syria and they wanted the american missile to help shoot it down. >> and c